CN113276911A - Suspension type monorail vehicle section train position detection method and system - Google Patents
Suspension type monorail vehicle section train position detection method and system Download PDFInfo
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- CN113276911A CN113276911A CN202110776037.3A CN202110776037A CN113276911A CN 113276911 A CN113276911 A CN 113276911A CN 202110776037 A CN202110776037 A CN 202110776037A CN 113276911 A CN113276911 A CN 113276911A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or vehicle trains
- B61L25/025—Absolute localisation, e.g. providing geodetic coordinates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning, or like safety means along the route or between vehicles or vehicle trains
Abstract
The invention discloses a method and a system for detecting the position of a suspension type monorail vehicle section train, which comprises the following steps: dividing a plurality of virtual track sections in a vehicle section according to vehicle section line information, operation requirements and train length, and laying a transponder/beacon group in the vehicle section according to the divided virtual track sections; acquiring train positioning information, determining the real-time position of a train in a vehicle section according to the train positioning information, and calculating to obtain a virtual track section occupied by the whole train according to the real-time position of the train and the virtual track section data; the method comprises the steps that information of virtual track sections occupied by trains in current vehicle sections and idle virtual track sections is sent to interlocking equipment; so that the interlocking device takes the received information as an interlocking check condition. The invention can realize the division of the suspended single-train track section without installing axle counting equipment, can realize the position detection and tracking of the train in the train section, and provides a foundation for the safe operation control of the train.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a method and a system for detecting the position of a suspension type monorail vehicle section train.
Background
The position information of the suspended monorail train is the essential key parameter for train operation control, and the safety, reliability and accuracy of the parameters are of great importance to the train operation safety. At present, a suspension type single-rail main line signal system adopts a mobile blocking and wireless communication-based automatic train control system, and does not need to be provided with axle counting equipment for dividing a track section and a ground signal machine, and a driver drives a vehicle or the train automatically runs according to a vehicle-mounted signal. In the vehicle section, because the operation is complex, an interlocking route is adopted, only an interlocking system is provided to ensure the route safety, in the interlocking route, usually, axle counting equipment or a track circuit is utilized to divide track sections, the occupied/free track sections are detected to detect the position of a train, a driver displays and drives the train according to a ground signal machine, but because the running wheels and the guide wheels of the suspension type monorail vehicle both adopt solid rubber tires and run on a running surface in a steel track beam, the conditions of opening and shunting the track circuit cannot be met, the conditions of detecting the wheel set of the train by the axle counting are not provided, the position of the train cannot be checked by utilizing the track circuit, meanwhile, the track circuit or the axle counting equipment which is mature in state railways and urban railways cannot realize the function of detecting the occupied track of the suspension type monorail train, and the axle counting equipment is improved in time, and is also inconvenient to install and maintain.
Meanwhile, in the prior art, a system for tracking the position of a train by adopting a mobile block signal system which is the same as a main line in a vehicle section is already available, namely, a signal machine is not arranged in the vehicle section, and a driver drives the vehicle or the train automatically runs according to a vehicle-mounted signal, for example, the system and the method for automatically tracking the position of a suspended train in the vehicle section disclosed by the Chinese patent with the application number of 201710269770X adopt the mobile block signal system which is the same as the main line, and although the corresponding mobile block signal system can avoid the installation of a shaft counting, the mobile block signal system which is the same as the main line is adopted in the vehicle section, so that the investment and construction cost of the signal system is high; and the mobile block line end and the turnout zone based on wireless communication need to increase the length of a protection section, so that the scale of the whole vehicle section station yard can be increased, and the construction difficulty and cost of the vehicle section can be further increased. In addition, if the mobile block is adopted, the ground has no signal equipment, and although a driver can drive the vehicle directly according to the vehicle-mounted equipment, maintenance personnel in a vehicle section have potential safety hazards because the ground signal cannot be acquired. Therefore, communication-based automatic train control systems are not suitable for controlling the operation of a suspended monorail train segment.
Disclosure of Invention
The invention aims to overcome the defects that axle counting equipment is difficult to install in a suspended monorail train section to realize the track occupation detection function of a suspended monorail train and the moving block cost is high in the train section in the prior art, and provides a method and a system for detecting the position of the suspended monorail train section train by adopting a virtual track section.
In order to achieve the above purpose, the invention provides the following technical scheme:
a method of detecting a position of a section of a train of a suspended monorail vehicle, comprising:
dividing a plurality of virtual track sections in the vehicle section according to the vehicle section line information, the operation requirement and the train length, and laying a transponder/beacon group in the vehicle section according to the divided virtual track sections;
acquiring positioning information of the train relative to the transponder/beacon group, determining the real-time position of the train in a vehicle section according to the positioning information of the train, and calculating to obtain a virtual track section occupied by the whole train according to the real-time position of the train and the data of the virtual track section;
sending the information of the virtual track section occupied by the train in the current vehicle section and the idle virtual track section to interlocking equipment; so that the interlock device takes the received information as an interlock check condition. And the interlocking device can generate a route signal and an interlocking device operation instruction according to the interlocking checking condition, and provide a ground signal to guide the operation of the train in the train section.
Dividing a plurality of virtual track sections in a suspension type monorail train vehicle section according to vehicle section line information, operation requirements and train length, and laying a transponder/beacon group in the vehicle section according to the divided virtual track sections; therefore, the division of the track sections can be realized without actually dividing the axle counting system of the track sections, the detection function that the suspension type monorail train occupies the track can be realized by combining the relative positioning information and the state information of the ground interlocking equipment, the position of the train in the vehicle section is detected and tracked, and a foundation is provided for the safe operation control of the train.
According to a specific embodiment, in the above method for detecting the position of a train in a section of a suspended monorail vehicle, the acquiring the positioning information of the train comprises:
inquiring a next responder/beacon ID corresponding to the train head through the responder/beacon ID, the relative train running distance, the train running direction and the interlocking equipment state information acquired by the train head, judging whether the train positioning information loses the next responder information according to the distance information of the next responder/beacon ID, if not, taking the current train positioning information as the train positioning information, if so, correcting the train positioning information according to the distance information of the next responder/beacon ID, and prompting an alarm;
specifically, the interlocking device state information is turnout data (turnout direction) and is obtained from the interlocking device; the train running direction is calculated by a group of transponder/beacon group information acquired by the train.
According to a specific embodiment, in the method for detecting the train position of the suspended monorail vehicle section, the device operation information and the interlocking device state sent by the interlocking device are received, and the virtual rail section occupation/idle information in the vehicle section is updated according to the interlocking device state.
In a further embodiment of the present invention, a system for detecting a train position by using the method for detecting a train position of a suspended monorail vehicle section comprises:
suspension type monorail tests speed and locates the subsystem, includes: pre-deployed transponder/beacon groups; the suspension type monorail speed measurement positioning subsystem is used for acquiring positioning information of a train relative to the transponder/beacon group and outputting the train positioning information to the train position detection system at the vehicle section; the pre-laid transponder/beacon group and the vehicle section are divided into a plurality of virtual track sections, and a one-to-one mapping relation is formed;
the train section train position detection subsystem is used for determining the real-time position of a train in a train section according to the train positioning information, calculating to obtain a virtual track section occupied by the whole train according to the real-time position of the train and the virtual track section data, and sending the virtual track section occupied by the whole train and the free virtual track section information in the current train section to the interlocking equipment;
the interlocking device can use the virtual track section occupied by the whole train and the idle virtual track section information in the current vehicle section as the interlocking checking condition.
In a further embodiment of the invention, in a suspended monorail vehicle section train position detection system, the interlock device is configured to: after interlocking check is executed according to the interlocking check condition, an interlocking access and/or equipment operation instruction is generated, the equipment operation instruction is executed, and the state of the interlocking equipment after the operation is executed is sent to the train position detection system of the train section; and enabling the train position detection system of the vehicle section to update the virtual track section occupation/idle information and the virtual track section state information in the vehicle section according to the state of the interlocking equipment.
In a further embodiment of the present invention, in a suspended monorail vehicle section train position detection system, the vehicle section train position detection subsystem comprises: the system comprises a first communication module, a train position calculation module, a basic data module, a virtual track section occupation-idle inspection module and a second communication module;
the basic data module is used for pre-storing virtual track section data, transponder/beacon data and train operation data on a current line on a current vehicle section;
the train position calculation module is used for receiving train positioning information sent by the suspended monorail speed measurement positioning subsystem through the first communication module, judging whether the train positioning information is accurate according to the distance information of the next transponder/beacon ID corresponding to the train, if so, taking the current train positioning information as the train positioning information, and if not, correcting the train positioning information according to the distance information of the next transponder/beacon ID; calculating the real-time position of the train according to the transponder/beacon data stored in the basic data module and the train positioning information, and transmitting the position of the train to the virtual track section occupation-free inspection module; the interlocking equipment state information is turnout data;
the virtual track section occupation-idle inspection module is used for calculating virtual track section data occupied by the whole train according to the train positioning information and train data and virtual track section data stored in the basic data module, and sending the virtual track section data occupied by the whole train and idle virtual track section information in the current vehicle section to the interlocking device through the second communication module.
In a further embodiment of the invention, in a suspended monorail vehicle section train position detection system, the virtual track section data comprises: the virtual track section state is updated by the interlocking system according to train route information;
the switch data includes: the ID, name and state (straight direction/side direction) of the turnout, the name of the turnout corresponds to the name of the turnout in the interlocking system one by one, and the state of the turnout is updated by the interlocking system;
the transponder/beacon basis data table includes: transponder/beacon ID, warehousing direction straight transponder/beacon ID, distance Lzr, warehousing direction side transponder/beacon ID, distance Lcr, ex-warehouse direction straight transponder/beacon ID, distance Lzc, ex-warehouse direction side transponder/beacon ID, distance Lcc;
the train data includes: train ID, train length, and train end distance transponder reader distance.
In a further embodiment of the present invention, in the suspended monorail vehicle section train position detection system, the vehicle section train position detection subsystem further comprises:
and the warning module is used for sending a state warning signal to the interlocking equipment through the second communication module when the train position detection module detects that the train positioning information is inaccurate.
In a further embodiment of the present invention, in the system for detecting a position of a suspended monorail vehicle section train, the first communication module is a train-ground wireless communication device, and the second communication module is a serial communication module.
Compared with the prior art, the invention has the beneficial effects that: according to the method, a plurality of virtual track sections are divided in a suspension type monorail train vehicle section according to vehicle section line information, operation requirements and train length, and a transponder/beacon group is arranged in the vehicle section according to the divided virtual track sections; therefore, the division of the track sections can be realized without actually dividing the axle counting system of the track sections, the detection function that the suspension type monorail train occupies the track can be realized by combining the relative positioning information and the state information of the ground interlocking equipment, the position of the train in the vehicle section is detected and tracked, and a foundation is provided for the safe operation control of the train. The fixed block signal system based on the virtual track section adopted in the suspension type monorail train vehicle section greatly reduces the engineering cost compared with a moving block signal system of a main line, and meanwhile, the corresponding ground equipment state information can also provide ground signals for maintainers in the vehicle section, so that safety prompt information can be provided for the ground maintainers without additionally increasing safety protection equipment, and the safety of the ground maintainers is effectively ensured.
Description of the drawings:
FIG. 1 is a method of detecting a position of a train of suspended monorail vehicle sections in accordance with an exemplary embodiment of the present invention;
FIG. 2 is a block diagram of a suspended monorail vehicle section train position detection system in accordance with an exemplary embodiment of the present invention;
fig. 3a is a schematic diagram of a beacon arrangement 1 in an exemplary embodiment of the invention;
fig. 3b is a schematic illustration of a beacon arrangement 2 (a set of relative arrangement schematic illustrations as in fig. 3 a) in accordance with an exemplary embodiment of the present invention;
fig. 4a is a schematic diagram of a beacon arrangement 3 of an exemplary embodiment of the invention;
fig. 4b is a schematic diagram of a beacon arrangement 4 (as opposed to fig. 3a as a set of schematic diagrams) in accordance with an exemplary embodiment of the present invention;
fig. 5 is a schematic diagram of an application case of train position detection of a train in a train section according to an exemplary embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
Example 1
Fig. 1 shows a virtual track section-based suspended monorail vehicle section train position detection method in an exemplary embodiment of the present invention, comprising:
dividing a plurality of virtual track sections in the vehicle section according to the vehicle section line information, the operation requirement and the train length, and laying a transponder/beacon group in the vehicle section according to the divided virtual track sections;
acquiring positioning information of the train relative to the transponder/beacon group, determining the real-time position of the train in a vehicle section according to the positioning information of the train, and calculating to obtain a virtual track section occupied by the whole train according to the real-time position of the train and the data of the virtual track section; wherein the virtual track section data includes: mileage data, serial numbers and other data of each virtual track section in the vehicle section;
sending the information of the virtual track section occupied by the train in the current vehicle section and the idle virtual track section to interlocking equipment; and enabling the interlocking device to receive the virtual track section occupation/idle information and the free virtual track section information and take the virtual track section occupation/idle information and the free virtual track section information as interlocking checking conditions. And the interlocking device can generate a route signal and an interlocking device operation instruction according to the interlocking checking condition, and provide a ground signal to guide the operation of the train in the train section.
In a further embodiment of the invention, fig. 2 shows a virtual track section based suspended monorail vehicle section train position detection system of an exemplary embodiment of the present invention, comprising: the suspension type monorail speed measurement positioning subsystem is used for acquiring train positioning information and outputting the train positioning information to the train position detection system at the vehicle section;
suspension type monorail tests speed and locates the subsystem, includes: pre-deployed transponder/beacon groups; the suspension type monorail speed measurement positioning subsystem is used for acquiring positioning information of a train relative to the transponder/beacon group and outputting the train positioning information to the train position detection system at the vehicle section; the pre-laid transponder/beacon group and the vehicle section are divided into a plurality of virtual track sections, and a one-to-one mapping relation is formed;
the train section train position detection subsystem is used for determining the real-time position of a train in a train section according to the train positioning information, calculating to obtain a virtual track section occupied by the whole train according to the real-time position of the train and the virtual track section data, and sending the virtual track section occupied by the whole train and the free virtual track section information in the current train section to the interlocking equipment;
the interlocking device can use the virtual track section occupied by the whole train and the idle virtual track section information in the current train section as interlocking checking conditions, further perform interlocking checking and condition handling, generate interlocking route and/or stopped equipment instruction operation, and send the state of the interlocking device to the train position detection system in the train section after the equipment executes corresponding equipment instruction operation (such as turnout direction change, signal lamp display and the like).
Specifically, the suspension type monorail vehicle section train position detection system comprises an information receiving module, a train position calculation module, a virtual track section occupation/vacancy checking module, a basic data module and an information sending module, wherein the suspension type monorail speed measurement positioning system is a subsystem of a communication-based train automatic control system and is used for generating and sending train numbers, train running directions and information of transponder/beacon numbers, running distances and directions, a passive transponder or beacon needs to be installed on a track beam in a vehicle section to realize train position detection in the vehicle section, and a vehicle section interlocking system is used for obtaining a positioning and reversing state of turnout equipment in the vehicle section; the information receiving module is used for receiving the train number, the train running direction and the information of the transponder/beacon number, the running distance and the running direction sent by the suspended monorail speed measurement and positioning system, receiving switch equipment positioning and reversing state information fed back by a vehicle section interlocking system, and sending the train number, the train running direction, the 'responder/beacon number + running distance + running direction' and the switch positioning and reversing state information to a train position calculation module, the basic data module is used for storing line data, virtual track section data, turnout data and passive transponder/beacon data in the section of the vehicle section station yard, the line data, the turnout data and the passive transponder/beacon data in the section are provided for a train position calculation module, and the virtual track section data is provided for a virtual track section 'occupation/vacancy' inspection module; the train position calculation module is used for calculating the running direction of a train, the transponder/beacon number, the running distance and the running direction of a turnout, the switch positioning reversal state, line data and turnout data in a train section, the virtual track section occupation/vacancy check module is used for obtaining the train position calculated by the train position calculation module and the virtual track section data in basic data, judging the virtual track section where the train is located, sending the occupation information of the virtual track section to a train section interlock in real time, judging whether the train clears a virtual track section or not, and sending the clear and vacant virtual track section information to the train section interlock.
Preferably, the suspension type monorail speed measurement positioning system is a system configured to meet the requirement of on-line operation of a train, and in a vehicle section of a suspension type monorail, a transponder/beacon number is arranged on a track beam and used for reading absolute position mileage of the train, and wireless coverage is performed in the vehicle section and used for transmitting train number, train running direction, "transponder/beacon number + running distance" information sent by the train.
The suspended monorail speed measurement positioning system comprises a vehicle-mounted speed measurement sensor, a transponder/beacon reading device, a vehicle-mounted computer and a ground transponder/beacon. The vehicle-mounted transponder/beacon reading equipment reads ground transponder/beacon information (transponder/beacon ID number) to realize the accurate positioning of the train; the speed measuring sensor realizes train positioning relative to the train (transponder/beacon) and judges the running direction (warehousing and ex-warehousing direction) by counting wheel pairs. The vehicle-mounted computer produces positioning information of 'train ID + transponder/beacon number + running distance + direction', and periodically transmits the information to a ground train position detection system through train-ground wireless communication.
The train section interlocking system is used for receiving the information of the virtual track section occupied by the train and the idle virtual track section transmitted by the train position detection system, handling interlocking access and instruction operation according to the interlocking inspection condition by taking the received information as the interlocking inspection condition, and executing the instruction operation (turnout and annunciator) by the interlocking equipment to output the state of the interlocking equipment (turnout opening direction and annunciator) to the train position detection system; if the virtual track section number is an interlocking route, the train can enter the route, and the interlocking device can also transmit the virtual track section number to which the train is about to enter to the train position detection system.
The train position detection system comprises an information receiving module, a train position calculation module, a basic data module, a virtual track section occupation/vacancy checking module, an information sending module and an alarm module.
The information receiving module receives positioning information of a speed measuring and positioning system through a vehicle-ground wireless communication system and receives interlocking equipment state information of an interlocking system through a serial port or RJ 45;
the basic data module comprises virtual track section data, transponder/beacon data, turnout data and train data;
the virtual track section is a section which does not divide the whole vehicle section line into virtual sections through physical equipment. The virtual track section data includes: the system comprises a section ID, a section name, a section state, a warehousing direction section ID and a warehousing-out section ID, wherein the section name corresponds to the section name in the interlocking system one by one, and the section state is updated by the interlocking system;
turnout data: the turnout ID, the turnout name and the turnout state (straight direction/side direction), wherein the turnout name corresponds to the turnout name in the interlocking system one by one, and the turnout state is updated by the interlocking system;
train data: train ID, train length and train end distance from transponder reader distance (including safe distance);
transponder/beacon base data table: transponder/beacon ID, warehousing direction straight transponder/beacon ID, distance Lzr, warehousing direction side transponder/beacon ID, distance Lcr, ex-warehouse direction straight transponder/beacon ID, distance Lzc, ex-warehouse direction side transponder/beacon ID, distance Lcc; (wherein FIGS. 3a and 3b show one set of beacon arrangement schematics; FIGS. 4a and 4b show another set of beacon arrangement schematics)
Transponder/beacon meter
Transponder/beacon-virtual track segment relationship table: section ID, warehousing direction start-point transponder/beacon ID, distance Lzr, warehousing direction end-point transponder/beacon ID, distance Lcr, ex-warehouse direction start-point transponder/beacon ID, distance Lzc, ex-warehouse direction end-point transponder/beacon ID, distance Lcc;
transponder/beacon-switch relationship table: switch ID, switch transponder/beacon ID, switch straight transponder/beacon ID, and switch lateral transponder/beacon ID;
the train position calculating module calculates the positions of the train head and the train tail through train positioning information and basic data; the calculation method is as follows:
the first step is as follows: obtaining certain train positioning information (train ID + responder/beacon ID + distance (GETL) + running direction);
the second step is that: judging whether the train misses reading the transponder/beacon or not through the positioning information and transponder/beacon basic data, and inquiring the next transponder/beacon ID (NEXTID) and the distance NEXTL from the NEXTID through the transponder/beacon ID (GETID), the running direction and the turnout direction;
if GETL is more than or equal to NEXTL, the train position detection system sends the warning information of the lost reading responder to the interlocking system through the information sending module, and the positioning information is revised to NEXTID + NEXTL-GETL to enter a third step;
if GETL is less than NEXTL, entering the third step;
the third step: calculating the positions (ID and distance of a transponder) of the train head and the parking space according to the positioning information and the train data;
the fourth step: calculating virtual track sections occupied by the vehicle head and the vehicle tail through vehicle head parking places (ID and distance of a transponder) and section data;
the fifth step: calculating virtual track sections occupied by the whole train according to the section data and the section data of the locomotive parking spaces;
and a sixth step: and sending the information of the section occupied by the train to an interlocking system through an information sending module, and after the interlocking system is checked according to interlocking conditions, feeding the sent section information back to a train position checking system, and updating the data state of the basic data section.
Example 2
In a further embodiment of the invention, as shown in FIG. 5: the train L001 passes through the turnout 3 and enters a warehouse laterally;
virtual track section: 1DG, 2DG, 3DG, 4DG, 5 DG;
transponder/beacon: XB001, XB002, XB003, XB004, XB 005;
turnout: 3;
virtual dividing points: 1DG virtual division point NR (1 DG); 2DG virtual division points NC (2DG), NR (2 DG); a 3DG virtual division point NC (3DG), NCR (3DG), and NCC (3 DG); a 4DG virtual division point NC (4 DG); the 5DG virtual division point NC (5 DG).
The NR (1DG) position is equal to the NC (1DG) position; the NR (1DG) position is equal to the NC (3DG) position; the NCR (3DG) position equals the NC (5DG) position; the NZR (3DG) position is equal to the NC (4DG) position.
The length of the train is L, the distance from the train reader to the end L of the train is L, the safety distance of the train is L ampere, and the train runs for the distance L beacon after reading the beacon;
the train L001 periodically sends DWMsg (L001, XB003, L beacon, and enters a warehouse);
the turnout 3 where the 3DG is located is in a reverse state;
the head position of the train L001 is XB003+ L beacon + L end + L ampere, and the position of the train is between NC (3GD) and NCR (3GD), so that the train head of the L001 occupies 3 GD;
the position of the tail of the train L001 is XB003+ L column-L beacon-L end-L ampere, and because the L column-L beacon-L end-L ampere is larger than the distance from XB003 to XB001, the position of the tail of the train L001 can be converted into XB001+ L (XB 003: XB001) - (L column-L beacon-L end-L ampere), and the position of the tail of the train is between NC (2GD) and NR (3GD), so that the L001 train occupies 2 GD;
the L001 train is judged to occupy 2GD and 3DG because 2GD to 3DG pass through the side direction of the turnout 3 and the continuous virtual track sections between the 2GD and the 3DG are 2GD and 3 DG.
If the train L001 periodically sends DWMsg (L001, XB002, L beacon, and enters a warehouse) at the moment; the L beacon is larger than the distance between XB002 and XB003, which indicates that the L001 train misses reading XB003, an alarm is output, the sent DWMsg (L001, XB002, L beacon, warehouse entry) information is converted into DWMsg (L001, XB003, L beacon-L (XB 002: XB003), warehouse entry) to correct the train positioning information, the real-time position of the train is calculated according to the corrected train positioning information, the virtual track section occupied by the whole train is calculated according to the real-time position of the train and the virtual track section data and is transmitted to the interlocking equipment, so that the position of the train in the train section is detected and tracked, and a basis is provided for the safe operation control of the train.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A method for detecting the position of a suspended monorail vehicle section train is characterized by comprising the following steps:
dividing a plurality of virtual track sections in the vehicle section according to the vehicle section line information, the operation requirement and the train length, and laying a transponder/beacon group in the vehicle section according to the divided virtual track sections;
acquiring positioning information of the train relative to the transponder/beacon group, determining the real-time position of the train in a vehicle section according to the positioning information of the train, and calculating to obtain a virtual track section occupied by the whole train according to the real-time position of the train and the data of the virtual track section;
and sending the information of the virtual track section occupied by the train in the current vehicle section and the idle virtual track section to interlocking equipment so that the interlocking equipment takes the received information as an interlocking check condition.
2. The method of claim 1, wherein said obtaining location information for a train comprises:
inquiring a next responder/beacon ID corresponding to the train head through the responder/beacon ID, the relative train running distance, the train running direction and the interlocking equipment state information acquired by the train head, judging whether the train positioning information loses the next responder information according to the distance information of the next responder/beacon ID, if not, taking the current train positioning information as the train positioning information, if so, correcting the train positioning information according to the distance information of the next responder/beacon ID, and prompting an alarm;
and the interlocking equipment state information is turnout data.
3. The method of claim 1, wherein the method further comprises: and receiving the equipment operation information and the interlocking equipment state sent by the interlocking equipment, and updating the virtual track section occupation/idle information in the vehicle section according to the interlocking equipment state.
4. A system for detecting the position of a train using the method for detecting the position of a section of a train as claimed in any one of claims 1 to 3, comprising:
suspension type monorail tests speed and locates the subsystem, includes: pre-deployed transponder/beacon groups; the suspension type monorail speed measurement positioning subsystem is used for acquiring positioning information of a train relative to the transponder/beacon group and outputting the train positioning information to the train position detection system at the vehicle section; the pre-laid transponder/beacon group and the vehicle section are divided into a plurality of virtual track sections, and a one-to-one mapping relation is formed;
the train section train position detection subsystem is used for determining the real-time position of a train in a train section according to the train positioning information, calculating to obtain a virtual track section occupied by the whole train according to the real-time position of the train and the virtual track section data, and sending the virtual track section occupied by the whole train and the free virtual track section information in the current train section to the interlocking equipment;
the interlocking device can use the virtual track section occupied by the whole train and the idle virtual track section information in the current vehicle section as the interlocking checking condition.
5. The system of claim 4, wherein the interlock device is configured to: and after the interlocking check is executed according to the interlocking check condition, generating an interlocking access and/or equipment operation instruction, executing the equipment operation instruction, and sending the state of the interlocking equipment after the operation is executed to the train position detection system of the train section.
6. The system of claim 4 or 5, wherein the train-segment location detection subsystem comprises: the system comprises a first communication module, a train position calculation module, a basic data module, a virtual track section occupation-idle inspection module and a second communication module;
the basic data module is used for pre-storing virtual track section data, transponder/beacon data and train operation data on a current line on a current vehicle section;
the train position calculation module is used for receiving train positioning information sent by the suspended monorail speed measurement positioning subsystem through the first communication module, judging whether the train positioning information is accurate according to the distance information of the next transponder/beacon ID corresponding to the train, if so, taking the current train positioning information as the train positioning information, and if not, correcting the train positioning information according to the distance information of the next transponder/beacon ID; calculating the real-time position of the train according to the transponder/beacon data stored in the basic data module and the train positioning information, and transmitting the position of the train to the virtual track section occupation-free inspection module; the interlocking equipment state information is turnout data;
the virtual track section occupation-idle inspection module is used for calculating virtual track section data occupied by the whole train according to the train positioning information and train data and virtual track section data stored in the basic data module, and sending the virtual track section data occupied by the whole train and idle virtual track section information in the current vehicle section to the interlocking device through the second communication module.
7. The system of claim 6, wherein the virtual track section data comprises: section ID, section name, section state, section ID of warehousing direction and section ID of ex-warehousing;
the switch data includes: the turnout ID, the turnout name and the turnout state are in one-to-one correspondence with the turnout name in the interlocking system, and the turnout state is updated by the interlocking system;
the transponder/beacon basis data table includes: transponder/beacon ID, warehousing direction straight transponder/beacon ID, distance Lzr, warehousing direction side transponder/beacon ID, distance Lcr, ex-warehouse direction straight transponder/beacon ID, distance Lzc, ex-warehouse direction side transponder/beacon ID, distance Lcc;
the train data includes: train ID, train length, and train end distance transponder reader distance.
8. The system of claim 6 or 7, wherein the train-segment location detection subsystem further comprises:
and the warning module is used for sending a state warning signal to the interlocking equipment through the second communication module when the train position detection module detects that the train positioning information is inaccurate.
9. The system of claim 8, wherein the first communication module is a wireless communication device and the second communication module is a serial communication module.
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